A BBC spokesman told Huffington Post UK: "No one listening to our reporting could be in any doubt what kind of organisation this is. We call the group by the name it uses itself, and regularly review our approach.

"We also use additional descriptions to help make it clear we are referring to the group as they refer to themselves, such as 'so-called Islamic State'."

JK Rowling Unhappy With David Cameron For 'Seeking To Dictate BBC Editorial Policy' Over Islamic State

1/ 0

1/ 0

Some 39 other people were also wounded in the attack, including 21 who have already left hospital. Of the wounded, 25 were British.

The worst such attack in Tunisia's history came on the same day a man was found decapitated after an attack by suspected Islamic extremists on a French factory and a Shiite mosque in Kuwait was bombed, killing at least 25 people.